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      Article no.: 305523

      HiRunER precision ER collet chuck HSK-A 63 short

      Brand: GARANT
      Arbor standard ISO 12164-1
      Shape A
      Concentricity ≤ 3
      Balance quality G at rotational speed G 2.5 at 25,000 rpm
      Arbor standard DIN 69893
      Machining strategy HPC
      Machining strategy HSC

      HiRunER precision ER collet chuck HSK-A 63 short

      on request
      In stock
      2 pieces in stock
      On request
      Item no longer available
      Available in 1-3 working days
      Available in 4-6 working days
      Available in 1-2 weeks
      Subsequent delivery
      Unit price
      from  CHF 161.00
      plus VAT at the current rate Prices plus delivery costs
      for ER collets (ER)



      External and internal tapers are ground. All shanks are hard turned for a smooth cutting action. Including Balluffchip bore, high-performance clamping nut up to 25000 rpm.


      • Excellent concentricity in the system (chuck + collet + clamping nut), 3µm radial run-out with a 2µm collet, 6µm radial run-out with a 5µm collet.
      • Extremely strong holding force (up to factor 2 better than the standard ER chuck).
      • Vibration reduction effect due to 2-part clamping nut.


      For clamping tools with plain shank in collets to DIN 6499 - Form A and B.

      Supplied with:

      Precision clamping nut.

      Optional extras:

      Coolant pipe No. 309880, Coolant pipe plug-in socket No. 309890, ER clamping wrenches No. 309748 / 309749 Fahrion brand ER collets 308901 − 309434.


      • Clamps only nominal ⌀ up to shank ⌀ tolerance h 10.
      • Do not use the clamping nut in combination with a sealing washer.
      • Use the precision collet chuck always in conjunction with the precision clamping nut No. 309617.
      • Use in combination with Fahrion collets.

      Technical Data

      Balance quality G at rotational speed
      G 2.5 at 25,000 rpm 
      HSK-A 63 short 
      Balluffchip bore
      ≤ 3 µm
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